We were a little disappointed in bison sightings. There are around 2000 at the TGP Preserve we read but only saw a few and they were specks in the distance. we drove through, ate in Pawhuska and went back through right at dusk. Saw a ton of whitetail but no more bison.Tall Grass is a cool place. I thought we had bison down in Lawton... Tall Grass has bison, Lawton has a zoo.